def run(fs: VFs, target, cmd, cwd, env):
recursive = False
force = True
file_list = list()
if len(cmd) < 2:
raise Exception('rm: missing arguments')
for arg in cmd[1:]:
if arg[:2] == '--':
flag = arg[2:]
if flag == 'recursive':
recursive = True
elif flag == 'force':
force = True
elif flag in ('help', 'version'):
return None, None
else:
raise NotImplementedError(
'rm: flag --{:s} not implemented'.format(flag))
elif arg[0] == '-':
for flag in arg[1:]:
if flag in ('r', 'R'):
recursive = True
elif flag == 'f':
force = True
elif flag == 'v':
pass
else:
raise NotImplementedError(
'rm: flag -{:s} not implemented'.format(flag))
else:
file_list.append(join(cwd, arg))
for file in file_list:
fs.rm(file, recursive, force)
return None, None
def run(fs: VFs, target, cmd, cwd, env):
parents = False
dir_list = list()
for arg in cmd[1:]:
if arg[:2] == '--':
flag = arg[2:]
if flag == 'parents':
parents = True
elif flag in ('mode', 'verbose'):
pass
elif flag in ('help', 'version'):
return None, None
else:
raise NotImplementedError(
'mkdir: flag --{:s} not implemented'.format(flag))
elif arg[0] == '-':
for flag in arg[1:]:
if flag == 'p':
parents = True
elif flag in ('m', 'v'):
pass
else:
raise NotImplementedError(
'mkdir: flag -{:s} not implemented'.format(flag))
else:
dir_list.append(join(cwd, arg))
if not dir_list:
raise Exception('mkdir: missing arguments')
for path in dir_list:
if parents:
fs.mkdirs(path)
else:
fs.mkdir(path)
return None, None
def _get_dir_handler(fs, cwd, path):
file_path = join(cwd, path)
file, is_new_file = fs.get_current_dir(file_path, create_as_is=True)
if is_new_file:
print('WARNING: creating missing dir: {:s}'.format(
file.get_full_path()),
flush=True)
return file
def _parse_output(fs: VFs, config: GccConfig, argv, pos):
path = None
if argv[pos] == '-o':
pos += 1
if pos < len(argv):
path = argv[pos]
else:
path = argv[pos][2:]
if not path:
raise ValueError("missing filename after '-o'")
path = join(config._cwd, path)
file = fs.create_new_file(path, create_dirs=True)
config._output_file = (file.get_full_path(), file.get_version())
config._output_file_handler = file
return pos + 1
def get_current_file(self, path, cwd=None, create_as_is=False):
file_path = join(cwd, path)
file = None
try:
file = self._get_file(file_path, VFS_FILE, False, False, False)
except PathNotExist:
pass
if not file and create_as_is:
return self.create_new_file(file_path, create_dirs=True), True
elif file:
if create_as_is:
return VFileHandler(file), False
else:
return VFileHandler(file)
else:
raise PathNotExist
def _parse_library(fs: VFs, config: GccConfig, argv, pos):
path = None
if argv[pos] == '-L':
pos += 1
if pos < len(argv):
path = argv[pos]
else:
path = argv[pos][2:]
if not path:
raise ValueError("missing path after '-L'")
if path[0] == '=':
path = join(config._sysroot, path[1:])
rpath = _get_dir_handler(fs, config._cwd, path).get_full_path()
if rpath not in config._library_dirs_set:
config._library_dirs.append(rpath)
config._library_dirs_set.add(rpath)
return pos + 1
def _parse_sys_include(fs: VFs, config: GccConfig, argv, pos):
path = None
if argv[pos] == '-isystem':
pos += 1
if pos < len(argv):
path = argv[pos]
else:
path = argv[pos][8:]
if not path:
raise ValueError("missing path after '-isystem'")
if path[0] == '=':
path = join(config._sysroot, path[1:])
rpath = _get_dir_handler(fs, config._cwd, path).get_full_path()
if (rpath not in config._default_sys_include_dirs_set) and (
rpath not in config._sys_include_dirs_set):
config._sys_include_dirs.append(rpath)
config._sys_include_dirs_set.add(rpath)
return pos + 1
def _cp(fs,
cwd,
src,
dst,
dereference=False,
dereference_command_line=False,
recursive=False):
src = get_abs_path(join(cwd, src))
dst = get_abs_path(join(cwd, dst))
dst_type = fs.get_type(dst)
# dst exist
if dst_type:
if dst_type == VFS_SYMLINK:
dst = fs.realpath(dst)
dst_type = fs.get_type(dst)
if dst_type == VFS_DIR:
dst = join(dst, get_base_name(src))
dst_type = fs.get_type(dst)
if dst_type:
if dst_type == VFS_SYMLINK:
dst = fs.realpath(dst)
dst_type = fs.get_type(dst)
src_type = fs.get_type(src)
if not src_type:
fs.create_new_file(src, None, True)
src_type = VFS_FILE
print('WARNING: creating missing file: {:s}'.format(src), flush=True)
# raise PathNotExist('cp: file {:s} not exist.'.format(src))
if src_type == VFS_SYMLINK:
if dereference or dereference_command_line:
src = fs.realpath(src)
src_type = fs.get_type(src)
if not src_type:
fs.create_new_file(src, None, True)
src_type = VFS_FILE
print('WARNING: creating missing file: {:s}'.format(src),
flush=True)
# raise PathNotExist('cp: file {:s} not exist.'.format(src))
else:
if dst_type:
if dst_type != VFS_FILE:
raise Exception(
'cp: cannot overwrite dir {:s} with non-dir.'.format(
dst))
fs.rm(dst, force=True)
fs.mklink(dst, fs.readlink(src))
return None, None
if src_type == VFS_DIR:
if recursive:
if not dst_type or dst_type == VFS_DIR:
file_list = fs.list_dir(src)
src_list = list()
dst_list = list()
if not dst_type:
fs.mkdir(dst)
for file in file_list:
dep = _cp(fs, None, file.get_full_path(),
join(dst, file.get_base_name()), dereference,
False, True)
if dep[0]:
src_list.extend(dep[0])
dst_list.extend(dep[1])
return tuple(src_list), tuple(dst_list)
else:
raise Exception(
'cp: cannot overwrite dir {:s} with non-dir.'.format(dst))
return None, None
else:
if dst_type and dst_type != VFS_FILE:
raise Exception(
'cp: cannot overwrite dir {:s} with non-dir.'.format(dst))
else:
fs.mkdirs(get_dir_name(dst))
fs.copy(src, dst)
sfile = fs.get_current_file(src)
dfile = fs.get_current_file(dst)
return ((dfile.get_full_path(),
dfile.get_version()), ), ((sfile.get_full_path(),
sfile.get_version()), )
def run(fs: VFs, target, cmd, cwd, env):
dereference = False
dereference_command_line = True
recursive = False
file_list = list()
for arg in cmd[1:]:
if arg[0] == '-':
if arg[:2] == '--':
flags = [arg[2:]]
else:
flags = arg[1:]
for flag in flags:
if '=' in flag:
flag = flag.split('=')[0]
if flag in ('r', 'R', 'recursive'):
recursive = True
elif flag in ('d', 'P', 'no-dereference'):
dereference = False
dereference_command_line = False
elif flag in ('L', 'dereference'):
dereference = True
elif flag == 'H':
dereference_command_line = True
elif flag in ('a', 'archive'):
dereference = False
dereference_command_line = False
recursive = True
elif flag in ('p', 'f', 'v', 'force', 'verbose', 'preserve'):
pass
elif flag in ('help', 'version'):
return None, None
else:
raise NotImplementedError(
'cp: flag {:s} not implemented'.format(flag))
else:
file_list.append(arg)
if len(file_list) < 2:
raise Exception('cp: missing destination file operand')
destination_file = file_list[-1]
file_list = file_list[:-1]
# cp [OPTION]... [-T] SOURCE DEST
if len(file_list) == 1:
return _cp(fs, cwd, file_list[0], destination_file, dereference,
dereference_command_line, recursive)
else:
dst_dir = get_abs_path(join(cwd, destination_file))
dst_type = fs.get_type(dst_dir)
if not dst_type:
fs.mkdirs(dst_dir)
dst_type = VFS_DIR
if dst_type != VFS_DIR:
raise Exception(
'cp: destination is not dir or not exist: {:s}'.format(
destination_file))
src_list = list()
dst_list = list()
for file in file_list:
dep = _cp(fs, cwd, file, join(destination_file, file), dereference,
False, True)
if dep[0]:
src_list.extend(dep[0])
dst_list.extend(dep[1])
return tuple(src_list), tuple(dst_list)
def run(fs: VFs, target, cmd, cwd, env):
no_target_directory = False
sym_link = False
force = False
file_list = list()
for arg in cmd[1:]:
if arg[:2] == '--':
flag = arg[2:]
if flag == 'symbolic':
sym_link = True
elif flag == 'force':
force = True
elif flag == 'no-target-directory':
no_target_directory = True
elif flag in ('mode', 'verbose'):
pass
elif flag in ('help', 'version'):
return None, None
else:
raise NotImplementedError('ln: flag --{:s} not implemented'.format(flag))
elif arg[0] == '-':
for flag in arg[1:]:
if flag == 's':
sym_link = True
elif flag == 'f':
force = True
elif flag == 'T':
no_target_directory = True
elif flag in ('m', 'v'):
pass
else:
raise NotImplementedError('ln: flag -{:s} not implemented'.format(flag))
else:
file_list.append(arg)
if not file_list:
raise Exception('ln: missing arguments')
if not sym_link:
raise NotImplementedError('ln: hard link not implemented')
file_count = len(file_list)
# ln [OPTION]... [-T] TARGET LINK_NAME (1st form)
# ln [OPTION]... TARGET (2nd form)
if file_count <= 2:
target = file_list[0]
# 1st form
if file_count == 2:
path = join(cwd, file_list[1])
# path is dir or is link to dir and create in dir
if fs.get_real_type(path) == VFS_DIR and not no_target_directory:
path = join(path, get_base_name(target))
# 2nd form
else:
path = join(cwd, get_base_name(target))
_mklink(fs, path, target, force)
# ln [OPTION]... TARGET... DIRECTORY (3rd form)
elif not no_target_directory:
targets = file_list[:-1]
dir_path = join(cwd, file_list[-1])
path_type = fs.get_real_type(dir_path)
if not path_type or path_type != VFS_DIR:
raise Exception('ln: target `{:s}` is not a directory'.format(dir_path))
for target in targets:
path = join(dir_path, get_base_name(target))
_mklink(fs, path, target, force)
else:
raise Exception('ln: extra operand `{:s}`'.format(file_list[2]))
return None, None
def run(fs: VFs, target, cmd, cwd, env):
config = GccConfig()
config._cwd = cwd
config._command = target
c_type = 'c'
# start parsing
pos = 1
argc = len(cmd)
while pos < argc:
key, handler = _handlers.longest_prefix(cmd[pos])
if handler:
# call option parser
pos = handler(fs, config, cmd, pos)
else:
# is input file
input_file = cmd[pos]
if c_type == 'c' and input_file.endswith(('.cpp', '.cxx', '.cc')):
c_type = 'c++'
file = _get_file_handler(fs, cwd, input_file)
file_id = (file.get_full_path(), file.get_version())
if file_id not in config._input_files_set:
config._input_files.append(file_id)
config._input_files_set.add(file_id)
pos += 1
default_include_dirs = None
default_sys_include_dirs = None
if target in _init_default_include_dirs:
default_include_dirs = _init_default_include_dirs[target]
default_sys_include_dirs = _init_default_sys_include_dirs[target]
elif os.path.exists(target):
default_include_dirs, default_sys_include_dirs, default_macros = _get_gcc_default_config(
fs, target, c_type)
_init_default_include_dirs[target] = default_include_dirs
_init_default_sys_include_dirs[target] = default_sys_include_dirs
_init_default_macros[target] = default_macros
if default_include_dirs:
for inc_dir in default_include_dirs:
if inc_dir not in config._default_include_dirs_set:
config._default_include_dirs.append(inc_dir)
config._default_include_dirs_set.add(inc_dir)
if default_sys_include_dirs:
for inc_dir in default_sys_include_dirs:
if inc_dir not in config._default_sys_include_dirs_set:
config._default_sys_include_dirs.append(inc_dir)
config._default_sys_include_dirs_set.add(inc_dir)
if config._sysroot:
for sys_inc_dir in ('usr/local/include', 'usr/include'):
inc_dir = join(config._sysroot, sys_inc_dir)
if inc_dir not in config._default_sys_include_dirs_set:
config._default_sys_include_dirs.append(inc_dir)
config._default_sys_include_dirs_set.add(inc_dir)
for inc_dir in config._default_include_dirs_set:
if inc_dir in config._include_dirs_set:
config._include_dirs.remove(inc_dir)
for inc_dir in config._default_sys_include_dirs_set:
if inc_dir in config._sys_include_dirs_set:
config._sys_include_dirs.remove(inc_dir)
config._input_files = tuple(config._input_files)
config._include_files = tuple(config._include_files)
config._linked_libs = tuple(config._linked_libs)
config._include_dirs = tuple(config._include_dirs)
config._sys_include_dirs = tuple(config._sys_include_dirs)
config._library_dirs = tuple(config._library_dirs)
config._define_undef = tuple(config._define_undef)
config._other_options = tuple(config._other_options)
config._linker_options = tuple(config._linker_options)
config._default_include_dirs = tuple(config._default_include_dirs)
config._default_sys_include_dirs = tuple(config._default_sys_include_dirs)
if config._only_do_preprocessing:
if config._input_from_stdin:
return None, None
else:
return None, config._input_files
if not config._output_file:
# default output file
file = fs.create_new_file(join(cwd, 'a.out'))
file.get_extra_data_ref().value = config
config._output_file = (file.get_full_path(), file.get_version())
else:
config._output_file_handler.get_extra_data_ref().value = config
config._output_file_handler = None
if config._input_from_stdin:
return (config._output_file, ), None
else:
return (config._output_file, ), config._input_files
def cd(self, path):
new_path = join(self.cwd, path)
if self.fs.isdir(self.fs.realpath(new_path)):
self.cwd = new_path
else:
print('{:s} is not dir.'.format(path))
def get(self, path=None):
if path:
return join(self.cwd, path)
else:
return self.cwd
def _get_file(self,
path,
file_type,
create,
overwrite,
create_dirs,
override_to_dir=False):
ptr_node = self._root
abs_path = get_abs_path(path)
if abs_path == '/':
if file_type & VFS_DIR:
if create and overwrite:
raise FileExist('file {:s} exists.'.format(abs_path))
else:
return self._root.values[-1]
else:
raise FileTypeNotMatch(
'{:s} file type {:s} not match {:s}'.format(
abs_path, _type_to_string(self._root.values[-1].type),
_type_to_string(file_type)))
if not abs_path.startswith('/'):
raise ValueError(
'path `{:s}` not absolute or not valid'.format(abs_path))
path_elements = abs_path.split('/')
# loop through dirs
element_count = 0
for item in path_elements[:-1]:
element_count += 1
if not item:
continue
# 1. current node exists
# 2. current node is dir
current_dir = ptr_node.values[-1]
# if item node is exist
if item in ptr_node.children:
item_node = ptr_node.children[item]
item_file = item_node.values[-1]
# if item exists and is dir
if item_node.exist and item_file.type == VFS_DIR:
# move to dir
ptr_node = item_node
continue
# - item not exists
elif not item_node.exist:
# if we will create it
if create_dirs:
# create a new dir
item_node.values.append(
VDir(item_node, len(item_node.values),
current_dir.version))
item_node.exist = True
# move to dir
ptr_node = item_node
continue
# - error: path not exist
else:
raise PathNotExist('path {:s} is not exist.'.format(
join(ptr_node.path, item)))
# - item exists and is symlink
elif item_file.type == VFS_SYMLINK:
target = join(ptr_node.path, item_file.target,
*path_elements[element_count:])
# if symlink to itself
if target == abs_path:
raise PathNotExist('path {:s} is not exist.'.format(
join(ptr_node.path, item)))
# follow symlink
return self._get_file(target, file_type, create, overwrite,
create_dirs)
# - error: item exists but is not dir or symlink
else:
# if override to dir
if override_to_dir:
item_node.values.append(
VDir(item_node, len(item_node.values),
current_dir.version))
# move to dir
ptr_node = item_node
continue
raise PathNotExist('{:s} is not a dir.'.format(
item_node.path))
# - item node is not exist but we will create it
elif create_dirs:
# create new dir node and add to current node
item_node = Node(ptr_node, item)
ptr_node.children[item] = item_node
# create VDir for item node
item_node.values.append(VDir(item_node, 0,
current_dir.version))
# move to dir
ptr_node = item_node
continue
# - error: path not exist
else:
raise PathNotExist('path {:s} is not exist.'.format(
join(ptr_node.path, item)))
# try get file in target dir
file = path_elements[-1]
current_dir = ptr_node.values[-1]
# if file node is exist
if file in ptr_node.children:
file_node = ptr_node.children[file]
file_value = file_node.values[-1]
# if file is exist
if file_node.exist:
current_file = file_node.values[-1]
# if we should overwrite current file
if create and overwrite:
# if current is file and overwrite type is file
if file_type == VFS_FILE and current_file.type == VFS_FILE:
# create a new file
file_value = VFile(file_node, len(file_node.values),
current_dir.version)
file_node.values.append(file_value)
# - current is symlink and overwrite type is not symlink
elif not file_type & VFS_SYMLINK and current_file.type == VFS_SYMLINK:
target = join(ptr_node.path, file_value.target)
# if symlink to itself
if target == abs_path:
raise PathNotExist(
'path {:s} is not exist.'.format(abs_path))
# follow symlink
return self._get_file(target, file_type, create,
overwrite, create_dirs)
# - current is symlink and overwrite type is symlink
# - current is file and overwrite type is not file
# - current is dir and try to overwrite
else:
raise FileExist('file {:s} exists.'.format(abs_path))
# - current is symlink and create not overwrite
elif create and current_file.type == VFS_SYMLINK:
target = join(ptr_node.path, file_value.target)
# if symlink to itself
if target == abs_path:
raise PathNotExist(
'path {:s} is not exist.'.format(abs_path))
# follow symlink
return self._get_file(target, file_type, create, overwrite,
create_dirs)
# if file is what we want
if file_value.type & file_type:
return file_value
# - file is symlink
elif file_value.type == VFS_SYMLINK:
target = join(ptr_node.path, file_value.target)
# if symlink to itself
if target == abs_path:
raise PathNotExist(
'path {:s} is not exist.'.format(abs_path))
# follow symlink
return self._get_file(target, file_type, create, overwrite,
create_dirs)
# - error: file type not match
else:
raise FileTypeNotMatch(
'{:s} file type {:s} not match {:s}'.format(
abs_path, _type_to_string(file_value.type),
_type_to_string(file_type)))
# - file is not exist
else:
# if we will create it
if create:
# create a new file
file_value = _create_file(file_type, file_node,
len(file_node.values),
current_dir.version)
file_node.values.append(file_value)
file_node.exist = True
return file_value
# - error: path not exist
else:
raise PathNotExist('path {:s} is not exist.'.format(
join(ptr_node.path, file)))
# - file node is not exist but we will create it
elif create:
# create new file node and add to current node
file_node = Node(ptr_node, file)
ptr_node.children[file] = file_node
# create new file for item node
file_value = _create_file(file_type, file_node, 0,
current_dir.version)
file_node.values.append(file_value)
return file_value
# - error: path not exist
else:
raise PathNotExist('path {:s} is not exist.'.format(
join(ptr_node.path, file)))
def create_new_file(self, path, cwd=None, create_dirs=False):
return VFileHandler(
self._get_file(join(cwd, path), VFS_FILE, True, True, create_dirs,
create_dirs))
